On Wed,9/10/2014 10:53 AM, Bill Turner wrote:
Presto - a two band antenna with SWR of less than 2:1 and no traps or
switching and just one simple vertical element. 2:1 is well within the
capability of my rig and at such low frequencies, the loss from SWR is
negligible. Azimuth and elevation patterns are essentially the same as
with full length radials.
SWR is a lousy measure of antenna performance -- the only thing it
indicates is match to the chosen transmission line. Far better to
compute the full 3-D field strength and study field strength at the
desired vertical and horizontal angles.
73, Jim K9YC
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